Abstract: A mixer (1) comprises a rotatable mixing container (2), a container drive (7) for the mixing container (2), a mixing head (5) which can be attached in the mixing container (2), with a rotatably mounted mixing tool (10) and a tool drive (4) for the mixing tool (10), wherein the mixing container (2) is configured as a dimensionally stable mesh (21), wherein the interior of the mixing container (2) is designed with a replaceable, flexible insert (22) which curves into the intermediate spaces (24) of the mesh (21) when the mixing container (2) is filled with a material to be mixed.

Abstract: A mixer including a rotatable mixing container including a container drive, a mixing head attached in the mixing container, a rotatably mounted mixing tool, and a tool drive to drive the mixing tool. The mixing tool includes a shaft and a frame arranged concentrically around the shaft. The shaft and the frame are interconnected by at least two circulating elements. The at least one shear pin is arranged on the frame and is configured to be guided during an operation by at least one shear groove disposed in the mixing head.